Siemens SINAMICS G120D List Manual page 197

r1438 CO: Speed controller speed setpoint / n_ctrl n_set
Access level: 3
Can be changed: -
Units group: 3_1
Min
- [rpm]
Description: Display and connector output of the speed setpoint after setpoint limiting for the P component of the speed control-
ler.
For U/f operation, the value that is displayed is of no relevance.
Dependency: Refer to: r1439
Note: In the standard state (the reference model is de-activated), r1438 = r1439.
r1439 Speed setpoint I component / n_set I_comp
Access level: 4
Can be changed: -
Units group: 3_1
Min
- [rpm]
Description: Displays the speed setpoint for the I component of the speed controller (output of the reference model after the set-
point limiting).
Dependency: Refer to: r1438
Note: In the standard state (the reference model is de-activated), r1438 = r1439.
p1441[0...n] Actual speed smoothing time / n_act T_smooth
Access level: 3
Can be changed: U, T
Units group: -
Min
0.00 [ms]
Description: Sets the smoothing time constant (PT1) for the speed actual value.
Dependency: Refer to: r0063
Note: The speed actual value should be smoothed for encoders with a low pulse number or for resolvers.
After this parameter has been changed, we recommend that the speed controller is adapted and/or the speed con-
troller settings checked Kp (p1460) and Tn (p1462).
p1442[0...n] Speed controller speed actual value smoothing time / n_ctr n_act T_smth
Access level: 2
Can be changed: U, T
Units group: -
Min
0.00 [ms]
Description: Sets the smoothing time for the actual speed value of the speed controller for closed-loop control with encoder.
Note: The smoothing must be increased if there is gear backlash. For longer smoothing times, the integral time of the
speed controller must also be increased (e.g. using p0340 = 4).
© Siemens AG 2012 - 2013 All Rights Reserved
SINAMICS G120D List Manual (LH14), 01/2013
Calculated: -
Scaling: p2000
Unit selection: p0505
Max
- [rpm]
Calculated: -
Scaling: p2000
Unit selection: p0505
Max
- [rpm]
Calculated: p0340 = 1,3,4
Scaling: -
Unit selection: -
Max
50.00 [ms]
Calculated: p0340 = 1
Scaling: -
Unit selection: -
Max
32000.00 [ms]
Parameters
List of parameters
Data type: FloatingPoint32
Dyn. index: -
Func. diagram: 1550, 1590, 1700,
5030, 5040, 5042, 5210, 5300, 5620,
6031, 6040
Factory setting
- [rpm]
Data type: FloatingPoint32
Dyn. index: -
Func. diagram: 5030, 5040, 6031
Factory setting
- [rpm]
Data type: FloatingPoint32
Dyn. index: DDS, p0180
Func. diagram: 4715
Factory setting
0.00 [ms]
Data type: FloatingPoint32
Dyn. index: DDS, p0180
Func. diagram: 1700, 6040
Factory setting
4.00 [ms]
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